I've had this trailer for 3 years and believe me it is incredibly tough. I have moved everything from, literally, 100 tons of logs to bricks and rubble to concrete garage sides 3 at a time. It has been overloaded on nearly every occasion and not complained one bit.
Still works brilliantly, looks a little battered but we're moving another 2-3 tons of logs this weekend with it. Would recommend 100% and would go so far as it say that this is probably one if the best things I've ever spent my money on.